Display
Size:
6.7 inches
6.5 inches
Resolution:
3040 x 1440 pixels, 19:9 ratio, 502 PPI
1600 x 720 pixels, 20:9 ratio, 270 PPI
Technology:
Dynamic AMOLED
IPS LCD
Refresh rate:
60Hz
Screen-to-body:
89.26 %
79.20 %
Features:
HDR support, Scratch-resistant glass (Corning Gorilla Glass 6), Ambient light sensor, Proximity sensor
Ambient light sensor, Proximity sensor
Hardware
System chip:
Qualcomm Snapdragon 855 (7 nm)
Mediatek Helio P35 MT6765 (12 nm)
Processor:
Octa-core, 2840 MHz, Kryo 485, 64-bit
Octa-core, 4x 2.3GHz Cortex-A53 + 4x 1.8GHz Cortex-A53, 64-bit
GPU:
Adreno 640
PowerVR GE8320
RAM:
8GB
3GB LPDDR4
Internal storage:
256GB, available to use: 225 GB, not expandable
32GB (eMMC 5.1), available to use: 19.8 GB
Storage expansion:
microSDXC up to 512 GB
Device type:
Smartphone
Smartphone
OS:
Android (12, 11, 10, 9.0 Pie), Samsung One UI
Android (10), Samsung One UI
Battery
Capacity:
4500 mAh
4000 mAh
Type:
Li - Ion, Not user replaceable
Li - Polymer, Not user replaceable
Charging:
Qualcomm Quick Charge 2.0, USB Power Delivery, Samsung Adaptive Fast Charging, Qi and Powermat wireless charging, Reverse wireless charging
Fast charging
Max charge speed:
Wired: 15.0W
Camera
Rear:
Quad camera
Quad camera
Main camera:
12 MP (OIS, PDAF)
16 MP (PDAF)
Specifications:
Aperture size: F1.5/F2.4; Focal length: 26 mm; Sensor size: 1/2.55"; Pixel size: 1.4 μm
Aperture size: F1.8; Sensor size: 1/3.06"; Pixel size: 1 μm
Second camera:
12 MP (Telephoto, OIS, PDAF)
8 MP (Ultra-wide)
Specifications:
Optical zoom: 2.0x; Aperture size: F2.4; Focal Length: 52 mm; Sensor size: 1/3.6"; Pixel size: 1 μm
Aperture size: F2.2; Sensor size: 1/4"; Pixel size: 1.12 μm
Third camera:
16 MP (Ultra-wide)
2 MP (Macro)
Specifications:
Aperture size: F2.2; Focal Length: 12 mm; Sensor size: 1/3.1"; Pixel size: 1 μm
Aperture size: F2.4
Fourth camera:
0.3 MP VGA (ToF 3D depth sensing)
2 MP (Depth information)
Specifications:
Aperture size: F2.4
Flash:
LED
LED
Video recording:
3840x2160 (4K UHD) (60 fps), 1920x1080 (Full HD) (240 fps), 1280x720 (HD) (960 fps)
1920x1080 (Full HD) (30 fps)
Features:
HDR, Time-lapse video, EIS, Video calling, Video sharing
Front:
10 MP (Dual-Camera, Autofocus, HDR)
13 MP
Video capture:
3840x2160 (4K UHD)
1920x1080 (Full HD)
Design
Dimensions:
6.40 x 3.04 x 0.31 inches (162.6 x 77.1 x 7.94 mm)
6.61 x 3.02 x 0.32 inches (167.8 x 76.7 x 8.1 mm)
Weight:
6.98 oz (198.0 g)
6.81 oz (193.0 g)
Materials:
Back: Glass (Corning Gorilla Glass 6); Frame: Aluminum
Back: Plastic; Frame: Plastic
Resistance:
Water, Dust; IP68
Biometrics:
2D Face unlock, Ultrasonic in-screen fingerprint
Fingerprint (touch)
Keys:
Left: Volume control; Right: Lock/Unlock key
Right: Volume control, Lock/Unlock key
Colors:
Crown silver, Majestic black, Royal gold
Black
Cellular
5G:
n260, n261
4G (FDD):
Bands 2(1900), 3(1800), 4(AWS-1), 5(850), 7(2600), 8(900), 12(700 a), 13(700 c), 18(800 Lower), 19(800 Upper), 20(800 DD), 26(850+), 28(700 APT), 66(AWS-3)
Bands 1(2100), 2(1900), 3(1800), 4(AWS-1), 5(850), 7(2600), 8(900), 12(700 a), 13(700 c), 17(700 b), 20(800 DD), 25(1900+), 26(850+), 28(700 APT), 66(AWS-3), 71(600)
4G (TDD):
Bands 38(2600), 39(1900+), 40(2300), 41(2600+), 46, 48(3600)
Bands 38(2600), 39(1900+), 40(2300), 41(2600+)
3G:
Bands 1(2100), 2(1900), 5(850), 8(900)
Bands 1(2100), 2(1900), 4(1700/2100), 5(850), 8(900)
Data Speed:
LTE-A Pro Cat 20 (2000/150 Mbit/s), HSDPA+ (4G) 42.2 Mbit/s, HSUPA 5.76 Mbit/s
LTE-A Cat 6 (300/50 Mbit/s), HSDPA+ (4G) 42.2 Mbit/s, HSUPA 5.76 Mbit/s
SIM type:
Nano SIM
Nano SIM
HD Voice:
Yes
Yes
Multimedia
Headphones:
3.5mm jack
3.5mm jack
Speakers:
Earpiece, Multiple speakers
Earpiece, Loudspeaker
Features:
32-Bit DAC, Dolby Atmos, aptX-HD
Screen mirroring:
Wireless screen share
Wireless screen share
Radio:
FM
FM
Additional microphone(s):
for Noise cancellation
Connectivity & Features
Bluetooth:
5.0
5.0
Wi-Fi:
802.11 a, b, g, n, ac, ax, dual-band; MIMO, Wi-Fi Direct, Hotspot
802.11 a, b, g, n, ac, dual-band; Wi-Fi Direct, Hotspot
USB:
Type-C (reversible), USB 3.1
Type-C (reversible), USB 2.0
Features:
Charging, OTG, Video out
Charging
Location:
GPS, A-GPS, Glonass, Galileo, Cell ID, Wi-Fi positioning
GPS, A-GPS, Glonass, BeiDou, Cell ID, Wi-Fi positioning
Sensors:
Accelerometer, Gyroscope, Compass, Hall (for flip covers), Barometer
Accelerometer, Gyroscope, Compass
Other:
NFC, ANT+, UMA (Wi-Fi Calling)
NFC
Hearing aid compatible:
M4, T3
M4, T3
Regulatory Approval
FCC approval:
Date approved:
Apr 05, 2019
Apr 17, 2020
FCC ID value:
A3LSMG977U
ZCASMA215U
Measured SAR:
Head:
0.30 W/kg
0.42 W/kg
Body:
1.11 W/kg
1.27 W/kg
Simultaneous Transmission:
1.59 W/kg
1.27 W/kg
Wireless Router:
1.39 W/kg
1.27 W/kg
Phablet:
3.98 W/kg
Buyers information
Price:
$ 1300
$ 250
In The Box:
Samsung special screen protector ( already on device ), Wall adapter/USB cable/USB connector, Quick reference guide, Important consumer safety information, Product safety, and warranty brochure
This is the official Samsung Galaxy A21 User Guide in English provided from the manufacturer.
Availability
Officially announced:
Feb 20, 2019
Apr 08, 2020